Honeywell XLS140 Installation Manual Download

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XLS140 Installation Manual Form Number 95-7673-3 P/N 51927:C 12/06/2005

Installing the Control Panel

Installation

3.5 Installing the Control Panel

3.5.1 Control Panel Circuit Board & Keypad/Display Unit

The control panel mounts in chassis CHS-M2, which is usually positioned in the top row of the
backbox. The control panel’s CPU occupies three positions at the back of the chassis; the KDM-2
occupies two positions flush with the door. The XLS-NCA may be door-mounted directly in front
of the control panel if no KDM-2 is being used; see the

XLS-NCA Manual

for details and

restrictions.

1. Verify height of the mounting stud in the backbox. In older backboxes, the stud

must

shortened to prevent damage to the XLS140-CPU. All electronics must be removed from the
backbox before shortening. See instructions in the warning below.

From…

To…

Required Stand-off or Hardware

Chassis CHS-M2

Control panel or
module on first layer

Not applicable; integral to the chassis.

Control panel or
Option board, 1st layer

Option board, 2nd layer
(includes LEM-320)

4 male-female stand-offs of length 0.937 inch (23.8 mm) P/N 42166.

Option board, 2nd layer

Option board, 3rd layer

4 male-female stand-offs of length 0.937 inch (23.8 mm) P/N 42166.

Chassis

Option board, 4th layer
(flush with door)

Attaches directly to flanges on chassis. (Screws provided with option
boards & panel circuit modules)

Chassis

Panel circuit module
(flush with door)

Attaches directly to flanges on chassis. (Screws provided with option
boards & panel circuit modules)

Control panel

KDM-2 (upper edge)

2 stacks of male-female stand-offs:
P/N 42185 (2.0 inch, 50.8 mm) and
P/N 42186 (1.312 inch, 33.33 mm)

Chassis rail

KDM-2 (lower edge)

2 male-female stand-offs of length 0.937 inch (23.8 mm) P/N 42166.

Dress panel
DP-DISP or ADP-4B

XLS-NCA

Attaches directly to dress panel.
(Nuts provided with XLS-NCA.)

Dress panel
DP-DISP or ADP-4B

Option board

BMP-1 attaches to dress panel; option module attaches to BMP-1
(screws provided with option module).

Note: The initial release of chassis CHS-M2 used L-brackets and stand-offs of different lengths than the current model;

refer to

Doc.

51927

, Rev A (Form Number 95-7673).

Table 3.2 Stand-off Lengths

NOTE:

For initial release of XLS140, mounting instructions were different. Refer to the

installation manual shipped with the panel (Rev A).

WARNING:

For retrofit applications, verify the height of the backbox’s mounting stud on left side under CPU, as
shown in Figure 3.3 below. Stud height must not exceed 0.375 in. (9.525 mm). Early versions of the
CAB-4 Series backboxes and all CAB-3 Series backboxes have studs that require shortening.
Failure to shorten this 0.625 in. (15.875 mm) mounting stud will cause damage to the control panel’s
CPU. Remove electronics from backbox, permanently mount empty CHS-M2 chassis to backbox,
apply nut to mounting stud to protect threading, then cut stud to proper length. Reinstall electronics
as discussed in the steps below.

WARNING:

Do not cut without washers and nuts in place to protect threading. Wear protective eye covering.